Update git submodules

* Update docs/submodules/functest from branch 'master'
  - Merge "Updated basic attributes for opera testcase"
  - Updated basic attributes for opera testcase

    The original value as unknown is not reasonable.

    Change-Id: I23672ea70fff9b3badb2d2cf4f32dc3e038d7bb3
    Signed-off-by: helenyao <yaohelan@huawei.com>

diff --git a/docs/submodules/functest b/docs/submodules/functest
index ba6a807..4493eb2 160000 (submodule)
--- a/docs/submodules/functest
+++ b/docs/submodules/functest
@@ -1 +1 @@
-Subproject commit ba6a80758cc3338e1deeffbbf69ffc410c46fc0c
+Subproject commit 4493eb2b84f5d7f92ed9945f17fa402b3be0d9d4